Analysis

  • max time kernel
    127s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 13:10

General

  • Target

    fcb6c8e1b4d5484459e84a4c3e2b0c85c94ac056184f81deb2d4a5c6f8dfaa6e.exe

  • Size

    3.1MB

  • MD5

    3c3384cd45ede6f3fa4dfb9296e28fa4

  • SHA1

    76ba463f3a40ca47d892e7cb30c31f319570c133

  • SHA256

    fcb6c8e1b4d5484459e84a4c3e2b0c85c94ac056184f81deb2d4a5c6f8dfaa6e

  • SHA512

    9e1a80129dc61e57a730550fef6fb86923a9d7040a3f5014d662d21061d5757d8e64f557b69b12fe439f9a6d0c3e477135223d606c546cedc7c79db2c19b5010

  • SSDEEP

    49152:bgpjaT01rpJXA5gtqA3Sv/fN9P5jDQoxnI3Kj/Y4y44ZGvhMJG0dvgNkwIe5nrM:kwSrphA5RN53vxnBEvGfJN1

Malware Config

Signatures

  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops Chrome extension 5 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fcb6c8e1b4d5484459e84a4c3e2b0c85c94ac056184f81deb2d4a5c6f8dfaa6e.exe
    "C:\Users\Admin\AppData\Local\Temp\fcb6c8e1b4d5484459e84a4c3e2b0c85c94ac056184f81deb2d4a5c6f8dfaa6e.exe"
    1⤵
    • Loads dropped DLL
    • Drops Chrome extension
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1712
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2312
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1260
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:3996
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:4764

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Browser Extensions

      1
      T1176

      Defense Evasion

      Modify Registry

      3
      T1112

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      Query Registry

      1
      T1012

      Collection

      Data from Local System

      1
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.dat
        Filesize

        4KB

        MD5

        a5be5d5552452d4f35248b550c563d5e

        SHA1

        93c4bbbf86f3433b2b9544887e51b7d178baa67d

        SHA256

        7aa3630eda6e49396c14bcf90691b53b97f6b175647f19bb0d92da57dc21a39d

        SHA512

        62fad17bfc57a8b5127c45401430d3695ed4c8a38f38a31fbd74261e2f20ed85299302a00f7a91a502a186a3e63ce8f53fb7e6f47e94be290fddfb33ad47e1d3

      • C:\Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.dll
        Filesize

        617KB

        MD5

        0824e96d2290c55a0656e54ae21a0500

        SHA1

        15e7c7faf237f6b74a39a26f1da39dbed1b49ed3

        SHA256

        020f799f6bab93debc71c2586cbc6615659066b11484f79ac2227eb8b6b8b164

        SHA512

        ad52079068406cfd2a6d9159f06b16929f99bdfe6a625ca36c758e8b8b705df1348c7275a815c6365d838ecc550104c0a76d4bd3bccbd0c6124521af3cb76138

      • C:\Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.tlb
        Filesize

        3KB

        MD5

        fd0036e8d0f7ceae3d5b84ab4e69fa0d

        SHA1

        232c8c8144e3318bee92e7532a534678163c66b4

        SHA256

        bc72436c05c34841214d3806884de83426e7d0dea4e806add03e010c6ef156dd

        SHA512

        da2c0d6e05afabe4bda4fac0803ea55878169e34087bde94115245727a17c57db5ae308d92bc13ac531b7ac2f6e0f93ff34dc0deeae829ca7513057b4ce1aba1

      • C:\Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.x64.dll
        Filesize

        696KB

        MD5

        df7367824b7f650acbd6e79ba2289d39

        SHA1

        c89d6ddd0b831488b79d2d84f114daa1da46151b

        SHA256

        0a1739d49e7161b3593306e1b1255278d6fa5ca642697c880dfa31b9d783bf62

        SHA512

        aa67c10cfc4ab9e0155ed89ee0e1a5db3bea596951e23d6fdadefc960f96a68723bb7423297c0ffdbf49fd6560504f6836d5f27f7077ac336e21bc09b9dd1e31

      • C:\Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.x64.dll
        Filesize

        696KB

        MD5

        df7367824b7f650acbd6e79ba2289d39

        SHA1

        c89d6ddd0b831488b79d2d84f114daa1da46151b

        SHA256

        0a1739d49e7161b3593306e1b1255278d6fa5ca642697c880dfa31b9d783bf62

        SHA512

        aa67c10cfc4ab9e0155ed89ee0e1a5db3bea596951e23d6fdadefc960f96a68723bb7423297c0ffdbf49fd6560504f6836d5f27f7077ac336e21bc09b9dd1e31

      • C:\Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.x64.dll
        Filesize

        696KB

        MD5

        df7367824b7f650acbd6e79ba2289d39

        SHA1

        c89d6ddd0b831488b79d2d84f114daa1da46151b

        SHA256

        0a1739d49e7161b3593306e1b1255278d6fa5ca642697c880dfa31b9d783bf62

        SHA512

        aa67c10cfc4ab9e0155ed89ee0e1a5db3bea596951e23d6fdadefc960f96a68723bb7423297c0ffdbf49fd6560504f6836d5f27f7077ac336e21bc09b9dd1e31

      • memory/1260-153-0x0000000000000000-mapping.dmp
      • memory/1712-141-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/1712-140-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/1712-145-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/1712-146-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/1712-147-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/1712-148-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/1712-143-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/1712-137-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/1712-142-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/1712-132-0x0000000000400000-0x00000000004A2000-memory.dmp
        Filesize

        648KB

      • memory/1712-144-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/1712-138-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/1712-139-0x0000000001642000-0x0000000001645000-memory.dmp
        Filesize

        12KB

      • memory/2312-150-0x0000000000000000-mapping.dmp